# Cellopoint Cloud Email Security Solution vs Microsoft Defender for Office 365: side-by-side comparison (2026) [Cellopoint Cloud Email Security Solution](https://cybersectools.com/tools/cellopoint-cloud-email-security-solution) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [Cellopoint](https://cybersectools.com/companies/cellopoint). [Microsoft Defender for Office 365](https://cybersectools.com/tools/microsoft-defender-for-office-365) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [Microsoft](https://cybersectools.com/companies/microsoft). Features, integrations, deployment and the company behind each one, side by side. ## Our take What our shortlists say about the one we picked. ### [Microsoft Defender for Office 365](https://cybersectools.com/tools/microsoft-defender-for-office-365) Best for: Teams running Microsoft 365 It is on the list because it is built into Microsoft 365, and many companies already own it through their license, so the buying question is often settled before you start. That makes it the natural first layer if you run Microsoft 365. Decide whether it covers your risk alone or needs a second product beside it, since it is built to work with other email security products. From [Best Email Security Solutions for Business](https://cybersectools.com/shortlists/best-email-security-platforms), Fall 2026. Reviewed by [Nika (Nikoloz) Kokhreidze](https://cybersectools.com/about). Need the answer fast? [Best Email Security Solutions for Business](https://cybersectools.com/shortlists/best-email-security-platforms) picks Proofpoint Core Email Protection, Microsoft Defender for Office 365, Mimecast Advanced Email Security and 4 more. ## Side-by-side comparison | | Cellopoint Cloud Email Security Solution | Microsoft Defender for Office 365 | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Email Security Platforms | Email Security Platforms | | Verified | No | No | | Deployment type | Cloud | Cloud | | Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | Company | Cellopoint | Microsoft | | Headquarters | – | – | ### Use cases and capabilities | | Cellopoint Cloud Email Security Solution | Microsoft Defender for Office 365 | |---|---|---| | Microsoft 365 | Yes | Yes | | Ransomware Prevention | Yes | – | ### Core features **Cellopoint Cloud Email Security Solution** 8 features listed. Sign in on the page to see them. **Microsoft Defender for Office 365** 10 features listed. Sign in on the page to see them. ### Integrations **Cellopoint Cloud Email Security Solution** 2 integrations listed. Sign in on the page to see them. **Microsoft Defender for Office 365** 4 integrations listed. Sign in on the page to see them. ## Cellopoint Cloud Email Security Solution vs Microsoft Defender for Office 365 FAQ Common questions when comparing Cellopoint Cloud Email Security Solution vs Microsoft Defender for Office 365 for email security platforms. ### What is the difference between Cellopoint Cloud Email Security Solution and Microsoft Defender for Office 365? **Cellopoint Cloud Email Security Solution**: Cloud-based email security platform protecting against phishing, ransomware, BEC. Built by Cellopoint. **Microsoft Defender for Office 365**: Email and collaboration security for Microsoft 365 environments. Built by Microsoft. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Cellopoint Cloud Email Security Solution and Microsoft Defender for Office 365? **Cellopoint Cloud Email Security Solution** is made by Cellopoint. **Microsoft Defender for Office 365** is made by Microsoft. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is Cellopoint Cloud Email Security Solution a good alternative to Microsoft Defender for Office 365? Often, yes. Cellopoint Cloud Email Security Solution and Microsoft Defender for Office 365 are both Email Security Platforms products, and both cover Microsoft 365. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [Cellopoint Cloud Email Security Solution vs KnowBe4 Cloud Email Security](https://cybersectools.com/compare/cellopoint-cloud-email-security-solution-vs-knowbe4-cloud-email-security) - [Cellopoint Cloud Email Security Solution vs ConnectWise Email Security](https://cybersectools.com/compare/cellopoint-cloud-email-security-solution-vs-connectwise-email-security) - [Cellopoint Cloud Email Security Solution vs ESET Cloud Office Security](https://cybersectools.com/compare/cellopoint-cloud-email-security-solution-vs-eset-cloud-office-security) - [Microsoft Defender for Office 365 vs KnowBe4 Cloud Email Security](https://cybersectools.com/compare/knowbe4-cloud-email-security-vs-microsoft-defender-for-office-365) - [Microsoft Defender for Office 365 vs ConnectWise Email Security](https://cybersectools.com/compare/connectwise-email-security-vs-microsoft-defender-for-office-365) - [Microsoft Defender for Office 365 vs ESET Cloud Office Security](https://cybersectools.com/compare/eset-cloud-office-security-vs-microsoft-defender-for-office-365) ## Alternatives to each - [See all Cellopoint Cloud Email Security Solution alternatives](https://cybersectools.com/alternatives/cellopoint-cloud-email-security-solution) - [See all Microsoft Defender for Office 365 alternatives](https://cybersectools.com/alternatives/microsoft-defender-for-office-365) --- Source: https://cybersectools.com/compare/cellopoint-cloud-email-security-solution-vs-microsoft-defender-for-office-365 For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/cellopoint-cloud-email-security-solution.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Cellopoint Cloud Email Security Solution and Microsoft Defender for Office 365: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md